ComAp InteliGen NTC Communications Manual page 3

InteliVision 5 display ....................................................................................................................... 54

Comms extension - I-LB+ Local bridge ................................................................................ 55

Comms extension - IG-IB Internet Bridge ............................................................................. 57

I-CR Module for CAN Bus Extension .................................................................................... 69
I-LB ................................................................................................................................................. 70

I-CR-R Module for CAN Bus Redundancy............................................................................ 71
Appendix ................................................................................................................................................ 75

Communication cables.......................................................................................................... 75
RS232 cable ................................................................................................................................... 75
USB cable ...................................................................................................................................... 76
Ethernet cable ................................................................................................................................ 77

Recommended CAN/RS485 connection .............................................................................. 78
CAN bus connection....................................................................................................................... 78
CAN bus extension options ............................................................................................................ 79
RS485 connection .......................................................................................................................... 82

Modem Recommendations ................................................................................................... 84
Analog Modem with DC Supply ..................................................................................................... 84
Recommended ISDN Modem ........................................................................................................ 84
Recommended CDMA Modem ...................................................................................................... 84
Recommended GSM Modems ....................................................................................................... 84
3G Modems .................................................................................................................................... 87
Recommended Satellite Modems .................................................................................................. 87

Converters ............................................................................................................................ 87
Converter RS232  RS485 ........................................................................................................... 87
RS232 Bluetooth adapter ............................................................................................................... 88
Converter 230V AC  TCP/IP ....................................................................................................... 88
Converter USB  RS232 .............................................................................................................. 88
Converter USB  RS485 .............................................................................................................. 89
Converter Modbus RTU  TCP .................................................................................................... 90
Isolator RS232 ................................................................................................................................ 90
Radio Link ...................................................................................................................................... 91
Converter Modbus RTU  SNMP ................................................................................................. 92
Converter Modbus RTU  Profibus .............................................................................................. 94
Ethernet converter from twisted pair (UTP/STP) to optic ............................................................. 101

SMS message commands .................................................................................................. 102
Modbus Connection ............................................................................................................................. 107

Modbus Step by Step.......................................................................................................... 107

Important setpoints in the controller .................................................................................... 107
Modbus communication via RS232 - single controller ................................................................ 107
Modbus communication via RS485 .............................................................................................. 108
Modbus communication via RS485 - multiple controllers ........................................................... 108
Modbus communication via I-LB .................................................................................................. 109
Modbus Communication ...................................................................................................................... 110

Data reading ....................................................................................................................... 110

Data writing ......................................................................................................................... 110
Modbus Protocol Description............................................................................................................... 112
Read Multiple Registers ............................................................................................................... 113
Write Single Register.................................................................................................................... 113

Alarm list reading ................................................................................................................ 115
Alarm list reading via Modbus ...................................................................................................... 115

History reading .................................................................................................................... 117

Check field calculation ........................................................................................................ 118

How get numbers of ModBus communication objects ........................................................ 118

Reserved communication objects ....................................................................................... 120

Access to password protected objects ............................................................................... 121

Commands for IGS-NT ....................................................................................................... 122

Commands for IM-NT ......................................................................................................... 123
User Modbus ....................................................................................................................................... 125
Modbus Appendix ................................................................................................................................ 126
Communication Guide, ©ComAp - March 2014
IGS-NT Communication Guide 03-2014.pdf
3